Refinery29 co-founder and co-CEO Philippe von Borries talks with Peter Kafka about how his company morphed from a New York-focused fashion guide to a globally recognized powerhouse with 150 million readers and followers online. He explains how Refinery29 created some of the Web's first native ads and argues that native advertising is the antidote to modern cynicism about traditional ads. Plus: Von Borries wants an end to over-generalizations about millennials.